@article{Sera_2022,<br/><span class="tab"></span> title={Extended two-stage designs for environmental research},<br/><span class="tab"></span> volume={21},<br/><span class="tab"></span> ISSN={1476-069X},<br/><span class="tab"></span> url={http://dx.doi.org/10.1186/s12940-022-00853-z},<br/><span class="tab"></span> DOI={10.1186/s12940-022-00853-z},<br/><span class="tab"></span> number={1},<br/><span class="tab"></span> journal={Environmental Health},<br/><span class="tab"></span> publisher={Springer Science and Business Media LLC},<br/><span class="tab"></span> author={Sera,<br/><span class="tab"></span> Francesco and Gasparrini,<br/><span class="tab"></span> Antonio},<br/><span class="tab"></span> year={2022},<br/><span class="tab"></span> month=apr }